1 /* 2 * Copyright 2019-2022 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the Apache License 2.0 (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10 #include <stddef.h> 11 #include <openssl/types.h> 12 #include <openssl/evp.h> 13 #include <openssl/core.h> 14 #include "internal/cryptlib.h" 15 #include "internal/thread_once.h" 16 #include "internal/property.h" 17 #include "internal/core.h" 18 #include "internal/provider.h" 19 #include "internal/namemap.h" 20 #include "internal/property.h" 21 #include "crypto/evp.h" /* evp_local.h needs it */ 22 #include "evp_local.h" 23 24 #define NAME_SEPARATOR ':' 25 26 static void evp_method_store_free(void *vstore) 27 { 28 ossl_method_store_free(vstore); 29 } 30 31 static void *evp_method_store_new(OSSL_LIB_CTX *ctx) 32 { 33 return ossl_method_store_new(ctx); 34 } 35 36 37 static const OSSL_LIB_CTX_METHOD evp_method_store_method = { 38 /* We want evp_method_store to be cleaned up before the provider store */ 39 OSSL_LIB_CTX_METHOD_PRIORITY_2, 40 evp_method_store_new, 41 evp_method_store_free, 42 }; 43 44 /* Data to be passed through ossl_method_construct() */ 45 struct evp_method_data_st { 46 OSSL_LIB_CTX *libctx; 47 int operation_id; /* For get_evp_method_from_store() */ 48 int name_id; /* For get_evp_method_from_store() */ 49 const char *names; /* For get_evp_method_from_store() */ 50 const char *propquery; /* For get_evp_method_from_store() */ 51 52 OSSL_METHOD_STORE *tmp_store; /* For get_tmp_evp_method_store() */ 53 54 unsigned int flag_construct_error_occurred : 1; 55 56 void *(*method_from_algorithm)(int name_id, const OSSL_ALGORITHM *, 57 OSSL_PROVIDER *); 58 int (*refcnt_up_method)(void *method); 59 void (*destruct_method)(void *method); 60 }; 61 62 /* 63 * Generic routines to fetch / create EVP methods with ossl_method_construct() 64 */ 65 static void *get_tmp_evp_method_store(void *data) 66 { 67 struct evp_method_data_st *methdata = data; 68 69 if (methdata->tmp_store == NULL) 70 methdata->tmp_store = ossl_method_store_new(methdata->libctx); 71 return methdata->tmp_store; 72 } 73 74 static void dealloc_tmp_evp_method_store(void *store) 75 { 76 if (store != NULL) 77 ossl_method_store_free(store); 78 } 79 80 static OSSL_METHOD_STORE *get_evp_method_store(OSSL_LIB_CTX *libctx) 81 { 82 return ossl_lib_ctx_get_data(libctx, OSSL_LIB_CTX_EVP_METHOD_STORE_INDEX, 83 &evp_method_store_method); 84 } 85 86 static int reserve_evp_method_store(void *store, void *data) 87 { 88 struct evp_method_data_st *methdata = data; 89 90 if (store == NULL 91 && (store = get_evp_method_store(methdata->libctx)) == NULL) 92 return 0; 93 94 return ossl_method_lock_store(store); 95 } 96 97 static int unreserve_evp_method_store(void *store, void *data) 98 { 99 struct evp_method_data_st *methdata = data; 100 101 if (store == NULL 102 && (store = get_evp_method_store(methdata->libctx)) == NULL) 103 return 0; 104 105 return ossl_method_unlock_store(store); 106 } 107 108 /* 109 * To identify the method in the EVP method store, we mix the name identity 110 * with the operation identity, under the assumption that we don't have more 111 * than 2^23 names or more than 2^8 operation types. 112 * 113 * The resulting identity is a 31-bit integer, composed like this: 114 * 115 * +---------23 bits--------+-8 bits-+ 116 * | name identity | op id | 117 * +------------------------+--------+ 118 * 119 * We limit this composite number to 31 bits, thus leaving the top uint32_t 120 * bit always zero, to avoid negative sign extension when downshifting after 121 * this number happens to be passed to an int (which happens as soon as it's 122 * passed to ossl_method_store_cache_set(), and it's in that form that it 123 * gets passed along to filter_on_operation_id(), defined further down. 124 */ 125 #define METHOD_ID_OPERATION_MASK 0x000000FF 126 #define METHOD_ID_OPERATION_MAX ((1 << 8) - 1) 127 #define METHOD_ID_NAME_MASK 0x7FFFFF00 128 #define METHOD_ID_NAME_OFFSET 8 129 #define METHOD_ID_NAME_MAX ((1 << 23) - 1) 130 static uint32_t evp_method_id(int name_id, unsigned int operation_id) 131 { 132 if (!ossl_assert(name_id > 0 && name_id <= METHOD_ID_NAME_MAX) 133 || !ossl_assert(operation_id > 0 134 && operation_id <= METHOD_ID_OPERATION_MAX)) 135 return 0; 136 return (((name_id << METHOD_ID_NAME_OFFSET) & METHOD_ID_NAME_MASK) 137 | (operation_id & METHOD_ID_OPERATION_MASK)); 138 } 139 140 static void *get_evp_method_from_store(void *store, const OSSL_PROVIDER **prov, 141 void *data) 142 { 143 struct evp_method_data_st *methdata = data; 144 void *method = NULL; 145 int name_id = 0; 146 uint32_t meth_id; 147 148 /* 149 * get_evp_method_from_store() is only called to try and get the method 150 * that evp_generic_fetch() is asking for, and the operation id as well 151 * as the name or name id are passed via methdata. 152 */ 153 if ((name_id = methdata->name_id) == 0 && methdata->names != NULL) { 154 OSSL_NAMEMAP *namemap = ossl_namemap_stored(methdata->libctx); 155 const char *names = methdata->names; 156 const char *q = strchr(names, NAME_SEPARATOR); 157 size_t l = (q == NULL ? strlen(names) : (size_t)(q - names)); 158 159 if (namemap == 0) 160 return NULL; 161 name_id = ossl_namemap_name2num_n(namemap, names, l); 162 } 163 164 if (name_id == 0 165 || (meth_id = evp_method_id(name_id, methdata->operation_id)) == 0) 166 return NULL; 167 168 if (store == NULL 169 && (store = get_evp_method_store(methdata->libctx)) == NULL) 170 return NULL; 171 172 if (!ossl_method_store_fetch(store, meth_id, methdata->propquery, prov, 173 &method)) 174 return NULL; 175 return method; 176 } 177 178 static int put_evp_method_in_store(void *store, void *method, 179 const OSSL_PROVIDER *prov, 180 const char *names, const char *propdef, 181 void *data) 182 { 183 struct evp_method_data_st *methdata = data; 184 OSSL_NAMEMAP *namemap; 185 int name_id; 186 uint32_t meth_id; 187 size_t l = 0; 188 189 /* 190 * put_evp_method_in_store() is only called with an EVP method that was 191 * successfully created by construct_method() below, which means that 192 * all the names should already be stored in the namemap with the same 193 * numeric identity, so just use the first to get that identity. 194 */ 195 if (names != NULL) { 196 const char *q = strchr(names, NAME_SEPARATOR); 197 198 l = (q == NULL ? strlen(names) : (size_t)(q - names)); 199 } 200 201 if ((namemap = ossl_namemap_stored(methdata->libctx)) == NULL 202 || (name_id = ossl_namemap_name2num_n(namemap, names, l)) == 0 203 || (meth_id = evp_method_id(name_id, methdata->operation_id)) == 0) 204 return 0; 205 206 if (store == NULL 207 && (store = get_evp_method_store(methdata->libctx)) == NULL) 208 return 0; 209 210 return ossl_method_store_add(store, prov, meth_id, propdef, method, 211 methdata->refcnt_up_method, 212 methdata->destruct_method); 213 } 214 215 /* 216 * The core fetching functionality passes the name of the implementation. 217 * This function is responsible to getting an identity number for it. 218 */ 219 static void *construct_evp_method(const OSSL_ALGORITHM *algodef, 220 OSSL_PROVIDER *prov, void *data) 221 { 222 /* 223 * This function is only called if get_evp_method_from_store() returned 224 * NULL, so it's safe to say that of all the spots to create a new 225 * namemap entry, this is it. Should the name already exist there, we 226 * know that ossl_namemap_add_name() will return its corresponding 227 * number. 228 */ 229 struct evp_method_data_st *methdata = data; 230 OSSL_LIB_CTX *libctx = ossl_provider_libctx(prov); 231 OSSL_NAMEMAP *namemap = ossl_namemap_stored(libctx); 232 const char *names = algodef->algorithm_names; 233 int name_id = ossl_namemap_add_names(namemap, 0, names, NAME_SEPARATOR); 234 void *method; 235 236 if (name_id == 0) 237 return NULL; 238 239 method = methdata->method_from_algorithm(name_id, algodef, prov); 240 241 /* 242 * Flag to indicate that there was actual construction errors. This 243 * helps inner_evp_generic_fetch() determine what error it should 244 * record on inaccessible algorithms. 245 */ 246 if (method == NULL) 247 methdata->flag_construct_error_occurred = 1; 248 249 return method; 250 } 251 252 static void destruct_evp_method(void *method, void *data) 253 { 254 struct evp_method_data_st *methdata = data; 255 256 methdata->destruct_method(method); 257 } 258 259 static void * 260 inner_evp_generic_fetch(struct evp_method_data_st *methdata, 261 OSSL_PROVIDER *prov, int operation_id, 262 int name_id, const char *name, 263 const char *properties, 264 void *(*new_method)(int name_id, 265 const OSSL_ALGORITHM *algodef, 266 OSSL_PROVIDER *prov), 267 int (*up_ref_method)(void *), 268 void (*free_method)(void *)) 269 { 270 OSSL_METHOD_STORE *store = get_evp_method_store(methdata->libctx); 271 OSSL_NAMEMAP *namemap = ossl_namemap_stored(methdata->libctx); 272 const char *const propq = properties != NULL ? properties : ""; 273 uint32_t meth_id = 0; 274 void *method = NULL; 275 int unsupported = 0; 276 277 if (store == NULL || namemap == NULL) { 278 ERR_raise(ERR_LIB_EVP, ERR_R_PASSED_INVALID_ARGUMENT); 279 return NULL; 280 } 281 282 /* 283 * If there's ever an operation_id == 0 passed, we have an internal 284 * programming error. 285 */ 286 if (!ossl_assert(operation_id > 0)) { 287 ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); 288 return NULL; 289 } 290 291 /* 292 * If we have been passed both a name_id and a name, we have an 293 * internal programming error. 294 */ 295 if (!ossl_assert(name_id == 0 || name == NULL)) { 296 ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); 297 return NULL; 298 } 299 300 /* If we haven't received a name id yet, try to get one for the name */ 301 if (name_id == 0 && name != NULL) 302 name_id = ossl_namemap_name2num(namemap, name); 303 304 /* 305 * If we have a name id, calculate a method id with evp_method_id(). 306 * 307 * evp_method_id returns 0 if we have too many operations (more than 308 * about 2^8) or too many names (more than about 2^24). In that case, 309 * we can't create any new method. 310 * For all intents and purposes, this is an internal error. 311 */ 312 if (name_id != 0 && (meth_id = evp_method_id(name_id, operation_id)) == 0) { 313 ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); 314 return NULL; 315 } 316 317 /* 318 * If we haven't found the name yet, chances are that the algorithm to 319 * be fetched is unsupported. 320 */ 321 if (name_id == 0) 322 unsupported = 1; 323 324 if (meth_id == 0 325 || !ossl_method_store_cache_get(store, prov, meth_id, propq, &method)) { 326 OSSL_METHOD_CONSTRUCT_METHOD mcm = { 327 get_tmp_evp_method_store, 328 reserve_evp_method_store, 329 unreserve_evp_method_store, 330 get_evp_method_from_store, 331 put_evp_method_in_store, 332 construct_evp_method, 333 destruct_evp_method 334 }; 335 336 methdata->operation_id = operation_id; 337 methdata->name_id = name_id; 338 methdata->names = name; 339 methdata->propquery = propq; 340 methdata->method_from_algorithm = new_method; 341 methdata->refcnt_up_method = up_ref_method; 342 methdata->destruct_method = free_method; 343 methdata->flag_construct_error_occurred = 0; 344 if ((method = ossl_method_construct(methdata->libctx, operation_id, 345 &prov, 0 /* !force_cache */, 346 &mcm, methdata)) != NULL) { 347 /* 348 * If construction did create a method for us, we know that 349 * there is a correct name_id and meth_id, since those have 350 * already been calculated in get_evp_method_from_store() and 351 * put_evp_method_in_store() above. 352 */ 353 if (name_id == 0) 354 name_id = ossl_namemap_name2num(namemap, name); 355 meth_id = evp_method_id(name_id, operation_id); 356 if (name_id != 0) 357 ossl_method_store_cache_set(store, prov, meth_id, propq, 358 method, up_ref_method, free_method); 359 } 360 361 /* 362 * If we never were in the constructor, the algorithm to be fetched 363 * is unsupported. 364 */ 365 unsupported = !methdata->flag_construct_error_occurred; 366 } 367 368 if ((name_id != 0 || name != NULL) && method == NULL) { 369 int code = unsupported ? ERR_R_UNSUPPORTED : ERR_R_FETCH_FAILED; 370 371 if (name == NULL) 372 name = ossl_namemap_num2name(namemap, name_id, 0); 373 ERR_raise_data(ERR_LIB_EVP, code, 374 "%s, Algorithm (%s : %d), Properties (%s)", 375 ossl_lib_ctx_get_descriptor(methdata->libctx), 376 name == NULL ? "<null>" : name, name_id, 377 properties == NULL ? "<null>" : properties); 378 } 379 380 return method; 381 } 382 383 void *evp_generic_fetch(OSSL_LIB_CTX *libctx, int operation_id, 384 const char *name, const char *properties, 385 void *(*new_method)(int name_id, 386 const OSSL_ALGORITHM *algodef, 387 OSSL_PROVIDER *prov), 388 int (*up_ref_method)(void *), 389 void (*free_method)(void *)) 390 { 391 struct evp_method_data_st methdata; 392 void *method; 393 394 methdata.libctx = libctx; 395 methdata.tmp_store = NULL; 396 method = inner_evp_generic_fetch(&methdata, NULL, operation_id, 397 0, name, properties, 398 new_method, up_ref_method, free_method); 399 dealloc_tmp_evp_method_store(methdata.tmp_store); 400 return method; 401 } 402 403 /* 404 * evp_generic_fetch_by_number() is special, and only returns methods for 405 * already known names, i.e. it refuses to work if no name_id can be found 406 * (it's considered an internal programming error). 407 * This is meant to be used when one method needs to fetch an associated 408 * method. 409 */ 410 void *evp_generic_fetch_by_number(OSSL_LIB_CTX *libctx, int operation_id, 411 int name_id, const char *properties, 412 void *(*new_method)(int name_id, 413 const OSSL_ALGORITHM *algodef, 414 OSSL_PROVIDER *prov), 415 int (*up_ref_method)(void *), 416 void (*free_method)(void *)) 417 { 418 struct evp_method_data_st methdata; 419 void *method; 420 421 methdata.libctx = libctx; 422 methdata.tmp_store = NULL; 423 method = inner_evp_generic_fetch(&methdata, NULL, operation_id, 424 name_id, NULL, properties, 425 new_method, up_ref_method, free_method); 426 dealloc_tmp_evp_method_store(methdata.tmp_store); 427 return method; 428 } 429 430 /* 431 * evp_generic_fetch_from_prov() is special, and only returns methods from 432 * the given provider. 433 * This is meant to be used when one method needs to fetch an associated 434 * method. 435 */ 436 void *evp_generic_fetch_from_prov(OSSL_PROVIDER *prov, int operation_id, 437 const char *name, const char *properties, 438 void *(*new_method)(int name_id, 439 const OSSL_ALGORITHM *algodef, 440 OSSL_PROVIDER *prov), 441 int (*up_ref_method)(void *), 442 void (*free_method)(void *)) 443 { 444 struct evp_method_data_st methdata; 445 void *method; 446 447 methdata.libctx = ossl_provider_libctx(prov); 448 methdata.tmp_store = NULL; 449 method = inner_evp_generic_fetch(&methdata, prov, operation_id, 450 0, name, properties, 451 new_method, up_ref_method, free_method); 452 dealloc_tmp_evp_method_store(methdata.tmp_store); 453 return method; 454 } 455 456 int evp_method_store_cache_flush(OSSL_LIB_CTX *libctx) 457 { 458 OSSL_METHOD_STORE *store = get_evp_method_store(libctx); 459 460 if (store != NULL) 461 return ossl_method_store_cache_flush_all(store); 462 return 1; 463 } 464 465 int evp_method_store_remove_all_provided(const OSSL_PROVIDER *prov) 466 { 467 OSSL_LIB_CTX *libctx = ossl_provider_libctx(prov); 468 OSSL_METHOD_STORE *store = get_evp_method_store(libctx); 469 470 if (store != NULL) 471 return ossl_method_store_remove_all_provided(store, prov); 472 return 1; 473 } 474 475 static int evp_set_parsed_default_properties(OSSL_LIB_CTX *libctx, 476 OSSL_PROPERTY_LIST *def_prop, 477 int loadconfig, 478 int mirrored) 479 { 480 OSSL_METHOD_STORE *store = get_evp_method_store(libctx); 481 OSSL_PROPERTY_LIST **plp = ossl_ctx_global_properties(libctx, loadconfig); 482 483 if (plp != NULL && store != NULL) { 484 #ifndef FIPS_MODULE 485 char *propstr = NULL; 486 size_t strsz; 487 488 if (mirrored) { 489 if (ossl_global_properties_no_mirrored(libctx)) 490 return 0; 491 } else { 492 /* 493 * These properties have been explicitly set on this libctx, so 494 * don't allow any mirroring from a parent libctx. 495 */ 496 ossl_global_properties_stop_mirroring(libctx); 497 } 498 499 strsz = ossl_property_list_to_string(libctx, def_prop, NULL, 0); 500 if (strsz > 0) 501 propstr = OPENSSL_malloc(strsz); 502 if (propstr == NULL) { 503 ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); 504 return 0; 505 } 506 if (ossl_property_list_to_string(libctx, def_prop, propstr, 507 strsz) == 0) { 508 OPENSSL_free(propstr); 509 ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); 510 return 0; 511 } 512 ossl_provider_default_props_update(libctx, propstr); 513 OPENSSL_free(propstr); 514 #endif 515 ossl_property_free(*plp); 516 *plp = def_prop; 517 if (store != NULL) 518 return ossl_method_store_cache_flush_all(store); 519 } 520 ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); 521 return 0; 522 } 523 524 int evp_set_default_properties_int(OSSL_LIB_CTX *libctx, const char *propq, 525 int loadconfig, int mirrored) 526 { 527 OSSL_PROPERTY_LIST *pl = NULL; 528 529 if (propq != NULL && (pl = ossl_parse_query(libctx, propq, 1)) == NULL) { 530 ERR_raise(ERR_LIB_EVP, EVP_R_DEFAULT_QUERY_PARSE_ERROR); 531 return 0; 532 } 533 if (!evp_set_parsed_default_properties(libctx, pl, loadconfig, mirrored)) { 534 ossl_property_free(pl); 535 return 0; 536 } 537 return 1; 538 } 539 540 int EVP_set_default_properties(OSSL_LIB_CTX *libctx, const char *propq) 541 { 542 return evp_set_default_properties_int(libctx, propq, 1, 0); 543 } 544 545 static int evp_default_properties_merge(OSSL_LIB_CTX *libctx, const char *propq, 546 int loadconfig) 547 { 548 OSSL_PROPERTY_LIST **plp = ossl_ctx_global_properties(libctx, loadconfig); 549 OSSL_PROPERTY_LIST *pl1, *pl2; 550 551 if (propq == NULL) 552 return 1; 553 if (plp == NULL || *plp == NULL) 554 return evp_set_default_properties_int(libctx, propq, 0, 0); 555 if ((pl1 = ossl_parse_query(libctx, propq, 1)) == NULL) { 556 ERR_raise(ERR_LIB_EVP, EVP_R_DEFAULT_QUERY_PARSE_ERROR); 557 return 0; 558 } 559 pl2 = ossl_property_merge(pl1, *plp); 560 ossl_property_free(pl1); 561 if (pl2 == NULL) { 562 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); 563 return 0; 564 } 565 if (!evp_set_parsed_default_properties(libctx, pl2, 0, 0)) { 566 ossl_property_free(pl2); 567 return 0; 568 } 569 return 1; 570 } 571 572 static int evp_default_property_is_enabled(OSSL_LIB_CTX *libctx, 573 const char *prop_name) 574 { 575 OSSL_PROPERTY_LIST **plp = ossl_ctx_global_properties(libctx, 1); 576 577 return plp != NULL && ossl_property_is_enabled(libctx, prop_name, *plp); 578 } 579 580 int EVP_default_properties_is_fips_enabled(OSSL_LIB_CTX *libctx) 581 { 582 return evp_default_property_is_enabled(libctx, "fips"); 583 } 584 585 int evp_default_properties_enable_fips_int(OSSL_LIB_CTX *libctx, int enable, 586 int loadconfig) 587 { 588 const char *query = (enable != 0) ? "fips=yes" : "-fips"; 589 590 return evp_default_properties_merge(libctx, query, loadconfig); 591 } 592 593 int EVP_default_properties_enable_fips(OSSL_LIB_CTX *libctx, int enable) 594 { 595 return evp_default_properties_enable_fips_int(libctx, enable, 1); 596 } 597 598 char *evp_get_global_properties_str(OSSL_LIB_CTX *libctx, int loadconfig) 599 { 600 OSSL_PROPERTY_LIST **plp = ossl_ctx_global_properties(libctx, loadconfig); 601 char *propstr = NULL; 602 size_t sz; 603 604 if (plp == NULL) 605 return OPENSSL_strdup(""); 606 607 sz = ossl_property_list_to_string(libctx, *plp, NULL, 0); 608 if (sz == 0) { 609 ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); 610 return NULL; 611 } 612 613 propstr = OPENSSL_malloc(sz); 614 if (propstr == NULL) { 615 ERR_raise(ERR_LIB_EVP, ERR_R_MALLOC_FAILURE); 616 return NULL; 617 } 618 if (ossl_property_list_to_string(libctx, *plp, propstr, sz) == 0) { 619 ERR_raise(ERR_LIB_EVP, ERR_R_INTERNAL_ERROR); 620 OPENSSL_free(propstr); 621 return NULL; 622 } 623 return propstr; 624 } 625 626 struct filter_data_st { 627 int operation_id; 628 void (*user_fn)(void *method, void *arg); 629 void *user_arg; 630 }; 631 632 static void filter_on_operation_id(int id, void *method, void *arg) 633 { 634 struct filter_data_st *data = arg; 635 636 if ((id & METHOD_ID_OPERATION_MASK) == data->operation_id) 637 data->user_fn(method, data->user_arg); 638 } 639 640 void evp_generic_do_all(OSSL_LIB_CTX *libctx, int operation_id, 641 void (*user_fn)(void *method, void *arg), 642 void *user_arg, 643 void *(*new_method)(int name_id, 644 const OSSL_ALGORITHM *algodef, 645 OSSL_PROVIDER *prov), 646 int (*up_ref_method)(void *), 647 void (*free_method)(void *)) 648 { 649 struct evp_method_data_st methdata; 650 struct filter_data_st data; 651 652 methdata.libctx = libctx; 653 methdata.tmp_store = NULL; 654 (void)inner_evp_generic_fetch(&methdata, NULL, operation_id, 0, NULL, NULL, 655 new_method, up_ref_method, free_method); 656 657 data.operation_id = operation_id; 658 data.user_fn = user_fn; 659 data.user_arg = user_arg; 660 if (methdata.tmp_store != NULL) 661 ossl_method_store_do_all(methdata.tmp_store, &filter_on_operation_id, 662 &data); 663 ossl_method_store_do_all(get_evp_method_store(libctx), 664 &filter_on_operation_id, &data); 665 dealloc_tmp_evp_method_store(methdata.tmp_store); 666 } 667 668 int evp_is_a(OSSL_PROVIDER *prov, int number, 669 const char *legacy_name, const char *name) 670 { 671 /* 672 * For a |prov| that is NULL, the library context will be NULL 673 */ 674 OSSL_LIB_CTX *libctx = ossl_provider_libctx(prov); 675 OSSL_NAMEMAP *namemap = ossl_namemap_stored(libctx); 676 677 if (prov == NULL) 678 number = ossl_namemap_name2num(namemap, legacy_name); 679 return ossl_namemap_name2num(namemap, name) == number; 680 } 681 682 int evp_names_do_all(OSSL_PROVIDER *prov, int number, 683 void (*fn)(const char *name, void *data), 684 void *data) 685 { 686 OSSL_LIB_CTX *libctx = ossl_provider_libctx(prov); 687 OSSL_NAMEMAP *namemap = ossl_namemap_stored(libctx); 688 689 return ossl_namemap_doall_names(namemap, number, fn, data); 690 } 691